The Packages window displays the list of packages according to the criteria that you select by filtering, including, or searching:
You can click these expander icons to show and hide the list of versions available for this package.
The package version displays the version of the package that’s installed. If the package is not yet installed, the version that appears is the recommended version.
These icons show you the status of the package:
|A check mark indicates that the package is already installed or enabled.|
|The download icon indicates that the installed packages have an available update.|
|An error icon indicates that something went wrong during installation or loading. For more advice on resolving errors, see Error messages.|
By default, the Packages window displays the list of All packages with no Preview packages, but you can filter the list to display only packages installed in your Project (including local packages) or display only built-in Unity packages. You can also include Preview packages in the list and search for a specific package by package name, tagA reference word which you can assign to one or more GameObjects to help you identify GameObjects for scripting purposes. For example, you might define and “Edible” Tag for any item the player can eat in your game. More info
See in Glossary name, or package version.
Preview packages do not appear by default in the list of packages on the Packages window. This is because preview packagesA preview package is in development and not yet ready for production. A package in preview might be at any stage of development, from the initial stages to near completion.
See in Glossary might be unstable, so you should not use them in production.
To include preview packages in the list, select Show preview packages from the Advanced drop-down menu.
To view the list of versions available for a package:
In the list of packages, click the expander icon to the left of the package name.
If there are updates available, they are displayed along with the See all versions link.
Click See all versions to see the list of all available versions for that package.
You can select any of these versions for the current package and see the details specific to that version in the details view.
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